Summary statistics for s3_1_c13_3 variable in snf_rollup2540_96_1998 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- s3_1_c13_3 | 36 181.8189 210.2587 7.33 1050.67 by Jean Roth , jroth@nber.org , 17 Feb 2018